You are a network administrator on a network with T1(1,544Mbps) connections to three other company offices in?

a large metropolitan area network. you also maintain dialup (56Mbps) connections to four sales offices in town that sell your company products. you have ISDN (144Mbps) lines to backup the T1 connections betweens the large offices and you use only Cisco routers. Make a case for using either RIPv1,RIPv2 or IGRP as your routing protocol on your network, which parameters influence you?